extragalactic matter

英 [extragalactic matter]
美 [extragalactic matter]

中文释义

河外物质

单词分析

单词结构：

extragalactic matter

字母数：20

记忆提示

🎯 重点记忆：

  • 单词拼写：extragalactic matter
  • 核心含义：河外物质

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更新时间：2026-02-03 15:34:59